Carrier member and support member

ABSTRACT

In the carrier member, the connecting fiber connects a periphery part of the opening of the front surface layer and a periphery part of the opening of the back surface layer in each opening. At least one part of at least one connecting fiber is located inside each virtual space. The virtual space is a space which is surrounded with both surface layers and virtual vertical walls. The virtual vertical walls are extended, from inner edges of the periphery part of the opening of one layer, to the other layer. Since the carrier member has many opportunities for the volatile component to touch the air blow, the carrier member is superior in ability to volatilize the volatile component held by the carrier member.

BACKGROUND OF THE INVENTION

The present invention relates to a carrier member for holding a volatilecomponent, and to a support member using the carrier member. The carriermember and the support member can be used for a fan-type volatilizingapparatus.

An insect-pest-control apparatus which uses a volatileinsect-pest-control component as a volatile component is known. Thevolatile insect-pest-control component is, for example, a volatileinsecticidal component or a volatile insect-pest-repellent component.

Such insect-pest-control apparatus includes two kinds of types. One is aheating-type and the other is a non-heating-type. The heating-typeapparatus helps the volatilization of the insect-pest-control componentby a heater or combustion heat etc. The non-heating-type apparatusvolatilize the insect-pest-control component under an ordinarytemperature.

The heating-type apparatus was mainly used as the conventionalinsect-pest-control apparatus. However, in recent years, thenon-heating-type apparatus is remarkable instead of the heating-typeapparatus. Because, the non-heating-type apparatus does not need aheating source and also suits for use at indoor and outdoor.

A fan-type apparatus is put into practical use as one example of thenon-heating type apparatus. The fan-type apparatus has a fan and asupport member. The support member holds the volatile component. In thefan-type apparatus, the fan blows airflow to the support member, so thatthe volatile component is released from the support member into theatmosphere.

The support member is comprised of a carrier member impregnated with thevolatile component. The carrier member comprised of a corrugated paperis disclosed in the following patent document 1.

The following patent document 2 discloses a carrier member having ahoneycomb frame structure.

The following patent document 3 discloses a carrier member constructedwith overlapped nets. The net is made of twisted fibers.

[Patent Document 1 JP-A-7-236399

[Patent Document 2 JP-A-2003-160778

[Patent Document 3 JP-A-2001-200239

The above carrier member or support member can be expected to exert acertain level of the volatilization efficiency of drug.

However, since the volatilization efficiency is a basic performancewhich is required by the support member or the carrier member, thedevelopment of the support member etc. which has higher volatilizationefficiency is desired in the market.

SUMMARY OF THE INVENTION

An object of the present application is to provide a carrier memberwhich can release more efficiently the volatile component to exert moresufficiently the efficacy of the volatile component from the beginningstage.

A further object of the present application is to provide a supportmember using the above carrier member.

In order to achieve the above objects, inventors of the presentapplication made various samples of the carrier member and repeatedtests about the samples. Then, the inventors found out that a knittedfabric having a specified structure suited for the carrier member. Thespecified structure was a three-dimensional structure provided with alot of regular openings in the front surface layer and the back surfacelayer respectively. Moreover, the inventors investigated some kindsabout the above knitted fabric. Then, the inventors found out that apositional relationship between connecting fibers connecting both layersand the openings fluctuated the volatilization efficiency of drugs.

That is, the inventors found out that the following knitted fabric hadhigh volatilization efficiency of the drugs. The knitted fabric had thethree-dimensional structure in which the connecting fiber could be seeninside the opening of a plan view.

The first invention of the present application is a carrier member forholding a volatile component. The carrier member comprises a frontsurface layer made of fabrics, a back surface layer made of fabrics, andconnecting fibers connecting both layers. In the carrier member, eachlayer has a knitted fabric structure which has openings arrangedregularly, and at least one part of at least one connecting fiber islocated so as to be seen inside each opening in a plane view.

According to the first invention of the present application, thefollowing effect can be obtained. That is, the carrier member has manyopportunities for the volatile component to touch the air blow. Thecarrier member generates a small turbulence inside the carrier member.The carrier member can assure lots of air volume which pass through thecarrier member. Therefore, the carrier member is superior in ability tovolatilize the volatile component held by the carrier member.

The second invention of the present application is a carrier memberaccording to the first invention. In the carrier member, the connectingfiber connects a periphery part of the opening of the front surfacelayer and a periphery part of the opening of the back surface layer ineach opening. At least one part of at least one connecting fiber islocated inside each virtual space. The virtual space is a space which issurrounded with both surface layers and virtual vertical walls. Thevirtual vertical walls are extended, from inner edges of the peripherypart of the opening of one layer, to the other layer.

According to the second invention of the present application, the firstinvention can be embodied.

The third invention of the present application is a carrier memberaccording to the second invention. In the carrier member, the connectingfiber comes across the virtual space and connects the periphery part ofthe opening of the front surface layer and the periphery part of theopening of the back surface layer.

According to the third invention of the present application, the secondinvention can be realized.

The fourth invention of the present application is a carrier memberaccording to the third invention. In the carrier member, the peripherypart of the opening consists of corner parts and line parts. Theconnecting fiber connects the corner part or line part of the opening ofthe front surface layer and the corner part or line part of the openingof the back surface layer. The parts connected by the connecting fiberare opposite across the virtual space.

According to the fourth invention of the present application, the thirdinvention can be embodied.

As shown in FIG. 2A, the opening of the front surface layer has edges I,II, III, and IV, and the opening of the back surface layer has edges I′,II′, III′, and IV′. In the case of that, a combination of I and III′, acombination of II and IV′, a combination of III and I′, and acombination of IV and II′ are edges which are “opposite across thevirtual space”.

As shown in FIG. 2B, when the opening is hexagonal, a combination of Iand IV′, a combination of II and V′, and so on are edges which are“opposite across the virtual space”.

The fifth invention of the present application is a carrier memberaccording to the first or second invention. In the carrier member, theopening of the front surface layer and the opening of the back surfacelayer are overlapped in a plan view. More than 70% of an area of theopening of one layer is overlapped with the opening of the other layer.

According to the fifth invention of the present application, lots of airvolume which pass through the opening of the carrier member can beassured.

As shown in FIG. 1A, FIG. 1B, and FIG. 1C, there are the opening A ofthe front surface layer and the opening B of the back surface layer.When the opening A and the opening B are seen in a plan view from thefront surface layer, and the relation between the opening A and theopening B is the following (1)-(3), it can be said that 100% of the areaof the opening A overlaps with the opening B. This is shown in FIG. 1A.

(1) The shape and size in the opening A are the same as those in theopening B.

(2) The opening B is situated just under the opening A.

(3) The attitude of the opening A is the same as that of the opening B.

When the opening B is not situated just under the opening A although theshape and size in the opening A are the same as those in the opening B,the shadow part is overlapped as shown in FIG. 1B. And, it is desirablethat the area of the shadow part possesses more than 70% of the area ofone of the openings A and B.

When the attitude of the opening A is not the same as that of theopening B although the shape and size in the opening A are the same asthose of the opening B and the opening B is situated just under theopening A, the shadow part is overlapped as shown in FIG. 1C. And, it isdesirable that the area of the shadow part possesses more than 70% ofthe area of one of the openings A and B.

As not shown in Fig. , even if the shape or size in the opening of thefront surface layer is not the same as that of the opening in the backsurface layer, it is desirable that more than 70% of the area of theopening of one layer is overlapped to the opening of the other layer.

When the size of the opening of the front surface layer is differentfrom that of the opening of the back surface layer, the large openingshould be standard. That is, it is desirable that more than 70% of thearea of the large opening is overlapped to the small opening.

When a side for receiving a blow and a side for exhausting the blow areevident, the side for receiving the blow may be standard.

The sixth invention of the present application is a carrier memberaccording to the first or second invention. In the carrier member, oneor more connecting fibers are curved.

According to the sixth invention of the present application, it is easyfor the connecting fiber to be included inside the virtual space.

The seventh invention of the present application is a carrier memberaccording to the first or second invention. In the carrier member, theperiphery part of each opening is comprised of lines. The line consistsof a bundle of fibers. The line has a width of more than 0.6 mm. Theconnecting fiber has a diameter of less than 0.2 mm.

According to the seventh invention of the present application, thepreferred carrier member can be obtained.

The eighth invention of the present application is a carrier memberaccording to the first invention. In the carrier member, at least twoconnecting fibers are seen inside the opening.

The ninth invention of the present application is a carrier memberaccording to the second invention. In the carrier member, at least twoconnecting fibers are located inside the virtual space.

According to the eighth or ninth invention of the present application,the effect by the first invention can be surely obtained.

Conversely, all of the connecting fibers are not included inside thevirtual space.

The tenth invention of the present application is a support member forvolatilizing a volatile component. In the support member, the volatilecomponent is held by the carrier member of any one of the first to ninthinventions.

The support member according to the tenth invention of the presentapplication can release more efficiently the volatile component to exertmore sufficiently the efficacy of the volatile component from thebeginning stage.

The eleventh invention of the present application is a support memberaccording to the tenth invention. In the support member, the volatilecomponent is an insect-pest-control component.

The support member according to the eleventh invention of the presentapplication can show the insect-pest-control effect.

The present inventions can provide a carrier member which can releasemore efficiently the volatile component. For example, when the carriermember holding the volatile insect-pest-control component is used forthe fan-type and non-heating-type apparatus, the apparatus can exertmore sufficiently the efficacy of the volatile component from thebeginning stage.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1A, FIG. 1B, and FIG. 1C are explanatory views explaining thepositional relation between the opening of the front surface layer andthe opening of the back surface layer, respectively.

FIG. 2A and FIG. 2B are explanatory views explaining the positionalrelation between the edge of the opening of the front surface layer andthe edge of the opening of the back surface layer, respectively.

FIG. 3 is a perspective view explaining the fundamental construction ofthe carrier member according to the first embodiment.

FIG. 4 is a perspective view showing the modification example of thecarrier member shown in FIG. 3.

FIG. 5 is a perspective view showing the further modification example ofthe carrier member shown in FIG. 3.

FIG. 6A is a perspective view showing the carrier member according tothe second embodiment.

FIG. 6B is a explanatory view explaining the relation between theopenings and the connecting fibers.

FIG. 7A is a perspective view showing the carrier member according tothe third embodiment.

FIG. 7B is a explanatory view explaining a relation between the openingsand the connecting fibers.

FIG. 8A is a perspective view showing the carrier member according tothe fourth embodiment.

FIG. 8B is a explanatory view explaining a relation between the openingsand the connecting fibers.

FIG. 9A is a perspective view showing the carrier member according tothe fifth embodiment.

FIG. 9B is a explanatory view explaining a relation between the openingsand the connecting fibers.

FIG. 10A is a perspective view showing the carrier member according tothe sixth embodiment.

FIG. 10B is a explanatory view explaining a relation between theopenings and the connecting fibers.

FIG. 11 is a perspective view showing the test apparatus.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

Some embodiments of the carrier members of the present invention aredescribed below. The carrier member is a member for holding the volatilecomponent such as the insect-pest-control component. The support memberis the carrier member which held the volatile component.

First Embodiment

The construction and function of the carrier member of the firstembodiment of the present invention are described below.

FIG. 3 is a perspective view explaining the fundamental construction ofthe carrier member of the first embodiment. FIG. 4 and FIG. 5 aremodification examples of the carrier member shown in FIG. 3,respectively.

As shown in FIG. 3, the carrier member 1 of the first embodiment has astructure in which connecting fibers 2, 11 are included inside a virtualspace. Therefore, the carrier member 1 has a high opportunity for thevolatile component to touch a blow, and has high volatilizationefficiency.

That is, the carrier member 1 of the first embodiment has athree-dimensional structure which is constructed by a front surfacelayer 3 made of fabrics, a back surface layer 5 made of fabrics, andthree connecting fibers 2, 11 and 12. The connecting fibers connect thelayer 3 and the layer 5. The front surface layer 3 has a knitted fabricstructure, and has openings 6 which are arranged regularly. The backsurface layer 5 has a knitted fabric structure, and has openings 8 whichare arranged regularly.

As shown in FIG. 3, the opening 6 is composed of lines 15. The line 15is a bundle of fibers. Although the line 15 has many meshes, the mesh isdistinguished from the opening 6. That is, the opening 6 is surroundedwith the line 15 having the mesh. A size of the opening 6 is usuallymore than 1 mm² and is preferably more than 4 mm². The opening 8 is thesame as those of the opening 6.

In the carrier member 1, a part of the connecting fiber 2 and a part ofthe connecting fiber 11 are included inside the virtual space surroundedwith layer 3, layer 5 and virtual vertical walls. The virtual verticalwalls are extended downwardly from inner edges of the lines 15 of theopening 6.

That is, in the first embodiment, the opening 6 of the front surfacelayer 3 is connected with the opening 8 of the back surface layer 5 bythree connecting fibers 2, 11 and 12, and a part of the connecting fiber2 and a part of the connecting fiber 11 are included inside the virtualspace.

Referring to FIG. 3, in the carrier member 1 of the first embodiment,parts of two connecting fibers 2 and 11 in three connecting fibers 2, 11and 12 are included in the three-dimensional virtual space which issurrounded with chain double-dashed lines A, B, C and D.

That is, a plane surrounded with chain double-dashed lines A and B is avirtual vertical wall X, a plane surrounded with chain double-dashedlines B and C is a virtual vertical wall Y, a plane surrounded withchain double-dashed lines C and D is a virtual vertical wall Z, a planesurrounded with chain double-dashed lines D and E is a virtual verticalwall O. In the carrier member 1 of the first embodiment, parts of theconnecting fibers 2 and 11 are included in the three-dimensional virtualspace which is surrounded with the vertical wall X, Y, Z and O.

More specifically, the opening 6 of the front surface layer 3 is aquadrangle surrounded with corner parts a, b, c and d as shown in FIG.3. The back surface layer 5 facing to the front surface layer 3 has alsothe opening 8 surrounded with corner parts a′, b′, c′ and d′. The cornerpart a and the corner part a′ are in the corresponding positions. Thecorner part b and the corner part b′ are in the corresponding positions.The corner part c and the corner part c′ are in the correspondingpositions. The corner part d and the corner part d′ are in thecorresponding positions.

The connecting fiber 2 connects the line part a-b of the front surfacelayer 3 and the line part b′-c′ of the back surface layer 5. Theconnecting fiber 2 has a curved portion. A part of the connecting fiber2 is included in the virtual space surrounded with the vertical walls X,Y, Z and O.

The other connecting fiber 11 connects the line part c-d of the frontsurface layer 3 and the line part d′-a′ of the back surface layer 5. Apart of the connecting fiber 11 is also included in the virtual spacesurrounded with the vertical walls X, Y, Z and O.

In a plan view of the carrier member 1 of the first embodiment, parts ofthe connecting fibers 2 and 11 can be seen inside the quadrangularopening 6.

According to the carrier member 1 of the first embodiment, air blowenters into the inside of the carrier member 1 from the opening 6 andpasses through the back surface layer 5, as indicated by an arrow mark.However, in the first embodiment, since parts of the connecting fibers 2and 11 are included in the virtual space, which is surrounded with thevertical walls X, Y, Z and O and is an air blow flow channel in thecarrier member 1, the air blow touches the connecting fibers 2 and 11.

The connecting fibers 2 and 11 have respectively a curved portion.However, since the connecting fibers 2 and 11 connect the front surfacelayer 3 and the back surface layer 5, the connecting fibers 2 and 11have respectively a part extending along the direction of flow of theair blow. Therefore, when the air blow passes through the carrier member1, the air blow touches the connecting fibers 2 and 11 for a relativelylong time and volatilizes the volatile component held by the connectingfibers 2 and 11.

In the first embodiment, since parts of the connecting fibers 2 and 11are included in the virtual space, which is an air blow flow channel inthe carrier member 1, the connecting fibers 2 and 11 become obstaclesfor the air blow. Therefore, a slight turbulence occurs inside thecarrier member 1 and promotes the volatilization of the volatilecomponent.

However, since the connecting fibers 2 and 11 extend along the directionof the flow of the air blow, the resistances of the connecting fibers 2and 11 to the air blow are small. Therefore, the carrier member 1 canassure lots of air volume which pass through it.

As mentioned above, the carrier member 1 has many opportunities for thevolatile component to touch the air blow, and the carrier member 1generates a small turbulence inside it, and the carrier member 1 canassure lots of air volume which pass through it. Therefore, the carriermember 1 is superior in ability to volatilize the volatile componentheld by the carrier member 1.

In the carrier member 1 shown in FIG. 3, the opening 6 of the frontsurface layer 3 is in the same position as the opening 8 of the backsurface layer 5. However, the opening 6 and the opening 8 may be not inthe same positions as shown in FIG. 4. When the opening 6 and theopening 8 is not in the same positions, the carrier member 1 increasesopportunities for the volatile component to touch the air blow. However,the resistance to the air blow is increased and the pass air volume isdecreased. Therefore, it is desirable that more than 70% of the area ofone of the openings 6 and 8 are overlapped with the other of theopenings 6 and 8.

As shown in FIG. 5, the connecting fibers 2 and 11 may come across thevirtual space surrounded with the vertical walls X, Y, Z and O.

That is, in the carrier member 1 as shown in FIG. 5, the connectingfiber 2 connects the line part d-a of the front surface layer 3 and theline part b′-c′ of the back surface layer 5. Since the line part d-a ofthe front surface layer 3 faces to the line part b′-c′ of the backsurface layer 5 in a three-dimensionally oblique direction, theconnecting fiber 2 comes across the virtual space surrounded with thevertical walls X, Y, Z and O.

The connecting fiber 11 connects a line part c-d of the front surfacelayer 3 with a line part a′-b′ of the back surface layer 5. Since theline part c-d of the front surface layer 3 faces to the line part a′-b′of the back surface layer 5 in a three-dimensionally oblique direction,the connecting fiber 2 comes across the virtual space surrounded withthe vertical walls X, Y, Z, O.

The connecting fiber 2 connects an edge part of the opening of the frontsurface layer and an edge part of the opening of the back surface layer.The edge part being connected with the connecting fiber 2 in the frontsurface layer and the edge part being connected with the connectingfiber 2 in the back surface layer are in a position facing to each otheracross the virtual space. Therefore, the connecting fiber 2 comes acrossthe virtual space. The connecting fiber 11 is the same as those of theconnecting fiber 2.

Second Embodiment

FIG. 6A is a perspective view showing the carrier member according tothe second embodiment. FIG. 6B is a explanatory view explaining therelation between the openings and the connecting fibers.

As shown in FIG. 6A, the openings of the front surface layer 21 and theback surface layer 22 are hexagon and are more specifically hexagonalpattern. More specifically, as shown in FIG. 6B, the opening 23 of thefront surface layer 21 is composed of corner parts a, b, c, d, e and f.The opening 24 of the back surface layer 22 is composed of corner partsa′, b′, c′, d′, e′ and f′. In the opening 23, the line part b-c and theline part e-f facing the line part b-c are long, and the other lineparts are short. A virtual space is composed of corner parts a, b, c, d,e, f, a′, b′, c′, d′, e′ and f′. The virtual space is surrounded withthe layer 21, the layer 22 and the virtual vertical walls. The virtualvertical walls are extended downwardly from inner edges of the lines 15of the opening 23.

The width W (inner size) of the opening is 1.1 mm˜6.3 mm, the length Lof it is 1.3 mm˜7.7 mm, and the entire height H of it is about 2.1mm˜11.9 mm. The width w of the line 15 surrounding the opening is about0.2 mm˜1.4 mm.

There are the connecting fibers which connect the short line part of onelayer and the long line part of the other layer, and which come acrossthe virtual space a, b, c, d, e, f, a′, b′, c′, d′, e′ and f′.

The carrier member 20 of the second embodiment has the connecting fibers25, 26, 27, 28, 29, 30, 31, 32, 33 and 34.

The connecting fiber 26 connects the short line part a-b of the frontsurface layer 21 and the long line part e′-f′ of the back surface layer22. In the opening 23, the short line part a-b is not adjacent to thelong line part e-f. Meanwhile, the opening 23 and the opening 24 areoverlapped in a plan view. That is, the long line part e-f of theopening 23 and the long line part e′-f′ of the opening 24 are overlappedin a plan view. Therefore, the short line part a-b of the opening 23 isnot adjacent to the long line part e′-f′ of the opening 24 in a planview. According to this construction, the connecting fiber 26 comesacross the virtual space.

The connecting fiber 25 connects the short line part f-a of the frontsurface layer 21 and the long line part b′-c′ of the back surface layer22. Like the case of the connecting fiber 26, the short line part f-a isnot adjacent to the long line part b′-c′ in a plan view. Therefore, theconnecting fiber 25 comes across the virtual space.

The connecting fiber 28 connects the long line part e-f of the frontsurface layer 21 and the short line part c′-d′ of the back surface layer22. Like the case of the connecting fiber 26, the short line part e-f isnot adjacent to the long line part c′-d′ in a plan view. Therefore, theconnecting fiber 28 comes across the virtual space.

The connecting fiber 29 connects the long line part b-c of the frontsurface layer 21 and the short line part d′-e′ of the back surface layer22. Like the case of the connecting fiber 26, the short line part b-c isnot adjacent to the long line part d′-e′ in a plan view. Therefore, theconnecting fiber 29 comes across the virtual space.

There are the connecting fibers which connect the long line part of onelayer and the long line part of the other layer. The long line part ofone layer and the long line part of the other layer are located in athree-dimensionally oblique direction.

The connecting fiber 27 connects the long line part b-c of the frontsurface layer 21 and the long line part e′-f′ of the back surface layer22. The long line part b-c faces to the long line part e′-f′ in athree-dimensionally oblique direction. Therefore, the connecting fiber27 comes across the virtual space.

The connecting fiber 30 connects the long line part e-f of the frontsurface layer 21 and the long line part b′-c′ of the back surface layer22. The long line part e-f faces to the long line part b′-c′ in athree-dimensionally oblique direction. Therefore, the connecting fiber30 comes across the virtual space.

The connecting fibers 31 and 32 connect respectively the long line partb-c and the long line part b′-c′. The connecting fibers 33 and 34connect respectively the long line part e-f and the long line parte′-f′. The connecting fibers 33 and 34 curve to the inside in thevirtual space. Therefore, parts of the connecting fibers 33 and 34 areincluded inside the virtual space.

Third Embodiment

FIG. 7A is a perspective view showing the carrier member according tothe third embodiment. FIG. 7B is a explanatory view explaining arelation between the openings and the connecting fibers. The carriermember of the third embodiment has the connecting fibers which comeacross a virtual space.

The carrier member 40 is comprised of the front surface layer 45, theback surface layer 47, and the connecting fibers. The front surfacelayer 45 has the openings 46 and the back surface layer 47 has theopenings 48. The opening 46 is hexagonal pattern and is composed of sixline parts. Each line part has almost same length. The opening 48 is thesame as the opening 46.

The width W (inner size) of opening is 1.1 mm˜6.3 mm, the length L of itis 1.8 mm˜10.2 mm, and the entire height H of it is about 1 mm˜5 mm. Thewidth w of the line 15 surrounding the opening is about 0.3 mm˜1.7 mm.

The opening 46 is composed of corner parts a, b, c, d, e and f. Theopening 48 is composed of corner parts a′, b′, c′, d′, e′ and f′. Thevirtual space is composed of corner parts a, b, c, d, e, f, a′, b′, c′,d′, e′ and f′. The carrier member 40 has the connecting fibers 41, 42,43, 44, 50 and 51. The virtual space is surrounded with the layer 45,the layer 47 and the virtual vertical walls. The virtual vertical wallsare extended downwardly from inner edges of the lines 15 of the opening46.

The connecting fiber 41 connects the line part b-c of the opening 46 andthe line part e′-f′ of the opening 48. The line part b-c and the linepart e′-f′ are opposite across the virtual space. Therefore, theconnecting fiber 41 comes across the virtual space. That is, theconnecting fiber 41 is included inside the virtual space. The connectingfiber 42 connects like the connecting fiber 41. However, the connectingfiber 42 intersects the connecting fiber 41. 104 The connecting fibers43 and 44 connect the line part e-f of the opening 46 and the line partb′-c′ of the opening 48. The line part e-f and the line part b′-c′ areopposite across the virtual space. Therefore, the connecting fibers 43and 44 come across the virtual space. That is, the connecting fibers 43and 44 are included inside the virtual space.

The connecting fibers 50 connect the line part e-f of the opening 46 andthe line part e′-f′ of the opening 48. The line part e-f faces to theline part e′-f′. The connecting fibers 51 connect the line part f-a ofthe opening 46 and the corner part f′ of the opening 48.

Fourth Embodiment

FIG. 8A is a perspective view showing the carrier member according tothe fourth embodiment. FIG. 8B is a explanatory view explaining arelation between the openings and the connecting fibers. The carriermember 60 of the fourth embodiment has the connecting fibers which comeacross a virtual space.

The carrier member 60 is comprised of the front surface layer 61, theback surface layer 63, and the connecting fibers. The front surfacelayer 61 has the openings 62 and the back surface layer 63 has theopenings 65. The opening 62 is composed of corner parts a, b, c, d, eand f, and is hexagonal pattern. The opening 62 has six line parts a-b,b-c, c-d, d-e, e-f and f-a. The line parts b-c and e-f are long, and theother line parts are short. The opening 65 is composed of corner partsa′, b′, c′, d′, e′ and f′, and is the same as the opening 62. Thevirtual space is composed of corner parts a, b, c, d, e, f, a′, b′, c′,d′, e′ and f′. The virtual space is surrounded with the layer 61, thelayer 63 and the virtual vertical walls. The virtual vertical walls areextended downwardly from inner edges of the lines 15 of the opening 62.

The width W (inner size) of opening is 0.9 mm˜5.1 mm, the length L of itis 1.8 mm˜10.2 mm, and the entire height H of it is about 0.9 mm˜5.1 mm.The width w of the line 15 surrounding the opening is about 0.2 mm˜1.2mm.

The carrier member 60 has the connecting fibers 66, 67, 68, 69, 70, 71,72 and 73. The connecting fibers 66 and 67 connect the line part b-c ofthe opening 62 and the line part e′-f′ of the opening 65. The line partb-c and the line part e′-f′ are opposite across the virtual space.Therefore, the connecting fibers 66 and 67 come across the virtualspace. That is, the connecting fibers 66 and 67 are included inside thevirtual space.

The connecting fibers 68 and 69 connect the line part e-f of the opening62 and the line part b′-c′ of the opening 65. The line part e-f and theline part b′-c′ are opposite across the virtual space. Therefore, theconnecting fibers 68 and 69 come across the virtual space. That is, theconnecting fibers 68 and 69 are included inside the virtual space.

The connecting fiber 70 connects the short line part f-a of the opening62 and the short line part a′-b′ of the opening 65. The short line partf-a is adjacent to the long line part a′-b′ in a plan view. Therefore,the connecting fiber 70 is included inside the virtual space.

The connecting fiber 71 connects the short line part a-b of the opening62 and the short line part f′-a′ of the opening 65. The short line parta-b is adjacent to the long line part f′-a′ in a plan view. Therefore,the connecting fiber 71 is included inside the virtual space.

The connecting fibers 72 connect the long line part b-c of the opening62 and the long line part b′-c′ of the opening 65. The connecting fibers72 are convexly curved to the inside in the virtual space. Therefore,the connecting fibers 72 are included inside the virtual space.

The connecting fibers 73 connect the long line part e-f of the opening62 and the long line part e′-f′ of the opening 65. The connecting fibers73 are convexly curved to the inside in the adjacent virtual space.Therefore, the connecting fibers 73 are included inside the adjacentvirtual space.

Fifth Embodiment

FIG. 9A is a perspective view showing the carrier member according tothe fifth embodiment. FIG. 9B is a explanatory view explaining arelation between the openings and the connecting fibers. The carriermember 75 of the fifth embodiment has the connecting fibers which comeacross a virtual space.

The carrier member 75 is comprised of the front surface layer 77, theback surface layer 80, and the connecting fibers. The front surfacelayer 77 has the openings 76 and the back surface layer 80 has theopenings 81. The opening 76 is composed of corner parts a, b, c and d,and is approximately rhombic. The opening 76 has four line parts a-b,b-c, c-d and d-e. The opening 81 is composed of corner parts a′, b′, c′and d, and is the same as the opening 76. The virtual space is composedof corner parts a, b, c, d, a′, b′, c′ and d′. The virtual space issurrounded with the layer 77, the layer 80 and the virtual verticalwalls. The virtual vertical walls are extended downwardly from inneredges of the lines 15 of the opening 76.

The width W (inner size) of opening is 0.6 mm˜3.4 mm, the length L of itis 0.7 mm˜4.3 mm, and the entire height H of it is about 2.2 mm˜12.8 mm.The width w of the line 15 surrounding the opening is about 0.2 mm˜1.2mm.

The carrier member 75 has the connecting fibers 78 and 79. Theconnecting fibers 78 connect the line part a-b of the opening 76 and theline part c′-d′ of the opening 81. The line part a-b and the line partc′-d′ are opposite across the virtual space. Therefore, the connectingfibers 78 come across the virtual space. That is, the connecting fibers78 are included inside the virtual space.

The connecting fibers 79 connect the line part d-a of the opening 76 andthe line part b′-c′ of the opening 81. The line part d-a and the linepart b′-c′ are opposite across the virtual space. Therefore, theconnecting fibers 79 come across the virtual space. That is, theconnecting fibers 79 are included inside the virtual space.

Sixth Embodiment

FIG. 10A is a perspective view showing the carrier member according tothe sixth embodiment. FIG. 10B is a explanatory view explaining arelation between the openings and the connecting fibers. The carriermember 85 of the sixth embodiment has the connecting fibers which comeacross a virtual space.

The carrier member 75 is comprised of the front surface layer 90, theback surface layer 92, and the connecting fibers. The front surfacelayer 90 has the openings 91 and the back surface layer 92 has theopenings 93. The opening 91 is composed of corner parts a, b, c and d,and is approximately rhombic. The opening 93 is composed of corner partsa′, b′, c′ and d, and is the same as the opening 91. The virtual spaceis composed of corner parts a, b, c, d, a′, b′, c′ and d′. The virtualspace is surrounded with the layer 90, the layer 92 and the virtualvertical walls. The virtual vertical walls are extended downwardly frominner edges of the lines 15 of the opening 91.

The width W (inner size) of opening is 0.5 mm˜3.1 mm, the length L of itis 0.8 mm˜4.6 mm, and the entire height H of it is about 0.4 mm˜2.2 mm.The width w of the line 15 surrounding the opening is about 0.2 mm˜1.2mm.

The carrier member 85 has lots of the connecting fibers. The connectingfibers connect the corner part of the opening 91 and the corner part ofthe opening 93. The connected corner parts are in a correspondingposition.

These connecting fibers curve roughly. Therefore, parts of theseconnecting fibers are included inside the virtual space.

It is preferred that a fiber made of monofilament is used as theconnecting fiber from a viewpoint of enhancing the strength of thecarrier member. The connecting fibers may be formed into the loop-likestitch in two knitted fabric layers. The connecting fibers may be hookedto the stitch of two knitted fabric layers with tuck structure.

It is preferred that, in order that the carrier member has appropriateelasticity or appropriate repulsion, the width of the connecting fiberis 15 denier˜2000 denier, preferably 50 denier˜300 denier, in singlefiber denier.

In order to assure air permeability of the opening, a diameter of theconnecting fiber is preferably less than 0.2 mm.

In order to assure holding performance for the volatile component, awidth of the line of the opening is preferably more than 0.6 mm.

The carrier member is usually a knitted fabric having a double needlebed. The knitted fabric is a longitude knitted fabric or a latitudeknitted fabric. For example, the carrier member can be prepared by adouble-raschel machine or a double-circular-knitting machine etc. Thecarrier members according to the above embodiments can be made of thefollowing fiber. For example, synthetic fibers such as polyamide (forexample, 6,6-polyamide, 6-polyamide etc.), polyester (for example,polyethylene terephthalate, polytrimethylene terephthalate, polybutyleneterephthalate etc.), polyacrylonitrile etc.; semi-synthetic fibers suchas acetate, triacetate etc.; regenerated fibers such as rayon, cupraetc.; natural fibers such as wool, cotton etc. Polyamide, or blendedproduct of polyamido and polyester, is more preferable among them sinceit is superior to the chemical resistance and the rigidity of structuralformation.

The thickness of the carrier member, that is, the distance between twoknitted fabric layers, is usually 0.4 mm 35 mm, and is preferably 2 mm10 mm. The unit weight of the carrier member is usually 50 g/m²˜2.5kg/m², and is preferably 200 g/m²˜1000 g/m².

For example, FUSION (Trademark; Distributor: ASAHI KASEI FIBERSCORPORATION) can be used as this carrier member. In the presentinvention, these three-dimensional knitted fabrics which arecommercially available can be used as the carrier member without change.

The carrier member is provided for use after cutting it into the desiredsize. Alternatively, the carrier member is provided for use aftercutting it and then sewing or thermoforming it into the predeterminedform.

The support member according to the present invention can be obtained bymaking the carrier member hold the volatile component. Following methodscan be used for making the carrier member hold the volatile component.One method has a step of impregnating the carrier member with thevolatile component or a volatile solution and then drying the carriermember if necessary. The volatile solution is comprised of a suitablesolvent in which the volatile component is dissolved. Other method has astep of applying the volatile component or the volatile solution to thecarrier member and then drying the carrier member if necessary.

The compounds which can volatilize at an ordinary temperature (forexample, the vapor pressure at 25° C. is 1×10⁻⁶ mmHg or more) and havethe physiological activity (for example, perfume activity,insect-pest-control activity) can be used as the volatile component tobe held by the carrier member. When the carrier member is used for theinsect-pest-control apparatus of non-heating-type, especially theapparatus of fan-type, the effect of the carrier member is remarkable.It is preferred to use a volatile insect-pest-control component as thevolatile component. It is preferred to use an insect-pest-control activecompound which can volatilize at an ordinary temperature (for example,the vapor pressure at 25° C. is 1×10⁻⁶ mmHg or more), as the volatileinsect-pest-control component which is used in the present invention.

Following compounds can be used as the above-mentionedinsect-pest-control active compound.

5-propargyl-2-furfuryl 2,2,3,3-tetramethylcyclopropanecarboxylate,

1-ethynyl-2-methyl-2-pentenyl3-(2-methyl-1-propenyl)-2,2-dimethylcyclopropanecarboxylate,

1-ethynyl-2-methyl-2-pentenyl3-(2-chloro-2-fluorovinyl)-2,2-dimethylcyclopropane-1-carboxylate,

2,3,5,6-tetrafluoro-4-methylbenzyl3-(2-methyl-1-propenyl)-2,2-dimethylcyclopropanecarboxylate,

2,3,5,6-tetrafluoro-4-methylbenzyl3-(2-chloro-2-flurucyclopropanecarboxylate,

2,3,5,6-tetrafluorobenzyl3-(2,2-dichlorovinyl)-2,2-dimethylcyclopropanecarboxylate,

2,3,5,6-tetrafluoro-4-methylbenzyl3-(1-propenyl)-2,2-dimethylcyclopropanecarboxylate,

2,3,5,6-tetrafluoro-4-methylbenzyl3-(2,2-dichlorovinyl)-2,2-dimethylcyclopropanecarboxylate,

2,3,5,6-tetrafluoro-4-methoxymethylbenzyl3-(2-methyl-1-propenyl)-2,2-dimethylcyclopropanecarboxylate,

2,3,5,6-tetrafluoro-4-methoxymethylbenzyl3-(1-propenyl)-2,2-dimethylcyclopropanecarboxylate,

2-methyl-3-allyl-4-oxo-2-cyclopenten-1-yl2,2,3,3-tetramethylcyclopropanecarboxylate, natural pyrethrin.

In the present invention, only one kind of the above-mentioned compoundsmay be used, or two or more kinds of the above-mentioned compounds maybe used by mixing them.

From viewpoints of insect-pest-control activity and volatile property,at least one kind compound is preferably selected from the groupconsisting of the following compounds.

2,3,5,6-tetrafluoro-4-methoxymethylbenzyl3-(1-propenyl)-2,2-dimethylcyclopropanecarboxylate,

2,3,5,6-tetrafluoro-4-methylbenzyl3-(1-propenyl)-2,2-dimethylcyclopropanecarboxylate,

2,3,5,6-tetrafluorobenzyl3-(2,2-dichlorovinyl)-2,2-dimethylcyclopropanecarboxylate.

Moreover, at least one kind compound is preferably selected from thegroup consisting of the following compounds.

2,3,5,6-tetrafluoro-4-methoxymethylbenzyl(1R)-trans-3-(1-propenyl(Z/E=8/1))-2,2-dimethylcyclopropanecarboxylate,

2,3,5,6-tetrafluoro-4-methylbenzyl(1R)-trans-3-(1-propenyl(Z/E=8/1))-2,2-dimethylcyclopropanecarboxylate.

The amount of the volatile component held in the carrier member can bechanged according to application, status of use, or duration of use etc.Generally, the range of the above-mentioned amount is 0.001 g˜10 g,preferably 0.019 g˜5 g, and more preferably 0.05 g˜1 g, per 0.5 g of thecarrier member.

The following compounds or components other than the insect-pest-controlactive compound can be used as the volatile component. For example,perfume-antibacterial-insect-pest-repellent component which is containedin vegetable essential oil etc. Synthetic insect-pest-repellent activecompound such as Deet (Trade Name of diethyltoluamide) etc. In thepresent invention, a plurality of volatile components can be used at thesame time.

If an antioxidant, such as BHT, or an ultraviolet absorbent, is added tothe volatile component, the stability of the support member to light,heat, or oxidation can be increased.

The support member according to the present invention can be used in thefan-type volatilizing apparatus and can exert an effect of desiredinsect-pest-control. In that case, the support member is reinforced witha suitable reinforcing material if necessary and is equipped in theplace where the airflow will occur in the upwind or downwind side of thefan. And then, the fan is rotated. In the above-mentioned fan-typevolatilizing apparatus, the speed of airflow passing through the supportmember is usually 0.1 m/s˜10 m/s.

The present invention will be described below in further detail by meansof examples. The present invention should not be limited to theseexamples.

EXAMPLE 1

Firstly, a three-dimensional knitted fabric which has knitted structureshown in FIG. 6A and FIG. 6B was used as the carrier member. The frontsurface layer and the back surface layer of the carrier member had theopenings. The opening had the width W of 3.7 mm, the length L of 4.5 mm,and the entire height H of 7 mm. The width of the line surrounding theopening was 0.8 mm. 100% of the line was made from polyester.

Next, the above three-dimensional knitted fabric was cut into circularform having a diameter of 5 cm.

Next, 2,3,5,6-tetrafluoro-4-methoxymethylbenzyl(1R)-trans-3-(1-propenyl(Z/E=8/1))-2,2-dimethylcyclopropanecarboxylatewas used as the drug to be held by the carrier member. 120 mg of theabove drug was measured and the acetone solution of the above drug wasprepared.

Next, the above acetone solution was uniformly poured onto the carriermember from the front surface layer by using Pasteur pipette, so thatthe front surface layer, the back surface layer and the connectingfibers fully got a wetting.

And then, acetone was air-dried to prepare the support member of thepresent invention.

EXAMPLE 2

Firstly, a three-dimensional knitted fabric which has knitted structureshown in FIG. 7A and FIG. 7B was used as the carrier member. The frontsurface layer and the back surface layer of the carrier member had theopenings. The opening had the width W of 3.7 mm, the length L of 6 mm,and the entire height H of 4 mm. The width of the line surrounding theopening was 1 mm.

Next, the above three-dimensional knitted fabric was cut into circularform having a diameter of 5 cm.

Next, 2,3,5,6-tetrafluoro-4-methoxymethylbenzyl(1R)-trans-3-(1-propenyl(Z/E=8/1))-2,2-dimethylcyclopropanecarboxylatewas used as the drug to be held by the carrier member. 120 mg of theabove drug was measured and the acetone solution of the above drug wasprepared.

Next, the above acetone solution was uniformly poured onto the carriermember from the front surface layer by using Pasteur pipette, so thatthe front surface layer, the back surface layer and the connectingfibers fully got a wetting.

And then, acetone was air-dried to prepare the support member of thepresent invention.

EXAMPLE 3

Firstly, a three-dimensional knitted fabric which has knitted structureshown in FIG. 8A and FIG. 8B was used as the carrier member. The frontsurface layer and the back surface layer of the carrier member had theopenings. The opening had the width W of 3 mm, the length L of 6 mm, andthe entire height H of 3 mm. The width of the line surrounding theopening was 0.8 mm. 82% of the line was made from nylon and 18% of theline was made from polyester.

Next, the above three-dimensional knitted fabric was cut into circularform having a diameter of 5 cm.

Next, 2,3,5,6-tetrafluoro-4-methoxymethylbenzyl(1R)-trans-3-(1-propenyl(Z/E=8/1))-2,2-dimethylcyclopropanecarboxylatewas used as the drug to be held by the carrier member. 120 mg of theabove drug was measured and the acetone solution of the above drug wasprepared.

Next, the above acetone solution was uniformly poured onto the carriermember from the front surface layer by using Pasteur pipette, so thatthe front surface layer, the back surface layer and the connectingfibers fully got a wetting.

And then, acetone was air-dried to prepare the support member of thepresent invention.

EXAMPLE 4

Firstly, a three-dimensional knitted fabric which has knitted structureshown in FIG. 9A and FIG. 9B was used as the carrier member. The frontsurface layer and the back surface layer of the carrier member had theopenings. The opening had the width W of 2 mm, the length L of 2.5 mm,and the entire height H of 7.5 mm. The width of the line surrounding theopening was 0.7 mm.

Next, the above three-dimensional knitted fabric was cut into circularform having a diameter of 5 cm.

Next, 2,3,5,6-tetrafluoro-4-methoxymethylbenzyl(1R)-trans-3-(1-propenyl(Z/E=8/1))-2,2-dimethylcyclopropanecarboxylatewas used as the drug to be held by the carrier member. 120 mg of theabove drug was measured and the acetone solution of the above drug wasprepared.

Next, the above acetone solution was uniformly poured onto the carriermember from the front surface layer by using Pasteur pipette, so thatthe front surface layer, the back surface layer and the connectingfibers fully got a wetting.

And then, acetone was air-dried to prepare the support member of thepresent invention.

EXAMPLE 5

Firstly, a three-dimensional knitted fabric which has knitted structureshown in FIG. 10A and FIG. 10B was used as the carrier member. The frontsurface layer and the back surface layer of the carrier member had theopenings. The opening had the width W of 1.8 mm, the length L of 2.7 mm,and the entire height H of 1.3 mm. The width of the line surrounding theopening was 0.7 mm. 76% of the line was made from nylon and 24% of theline was made from polyester.

Next, the above three-dimensional knitted fabric was cut into circularform having a diameter of 5 cm.

Next, 2,3,5,6-tetrafluoro-4-methoxymethylbenzyl(1R)-trans-3-(1-propenyl(Z/E=8/1))-2,2-dimethylcyclopropanecarboxylatewas used as the drug to be held by the carrier member. 120 mg of theabove drug was measured and the acetone solution of the above drug wasprepared.

Next, the above acetone solution was uniformly poured onto the carriermember from the front surface layer by using Pasteur pipette, so thatthe front surface layer, the back surface layer and the connectingfibers fully got a wetting.

And then, acetone was air-dried to prepare the support member of thepresent invention.

TEST EXAMPLE

Each support member 100 prepared in Examples 1˜5 was used to prepare thetest apparatus shown in FIG. 11. In the test apparatus, the electric fanwas placed below the plastic cylinder 101. The support member 100 wasplaced on the upper part of the cylinder 101 so that the airflow 102from the fan 103 might hit perpendicularly to the plane surface of thesupport member 100. The cylinder 101 had a height of 7 cm and a diameterof 8.3 cm.

Insecticidal tests were carried out as follows. Firstly, five femaleadult insects of Culex pipiens pallens were released into the glass tubeand both ends of the glass tube were closed by nylon nets. The glasstube had a diameter of 4 cm and a height of 12 cm. Secondly, the glasstube was set in the plastic cylinder and then the metal cylinder wasplaced under the plastic cylinder. The plastic cylinder had a diameterof 18 cm and a height of 30 cm. The metal cylinder had a diameter of 20cm and a height of 80 cm. Thirdly, the above-mentioned test apparatuswas placed at the bottom of the metal cylinder and then the electric fanwas activated so that the speed of airflow passing through the supportmember might be 1.0 m/s. Finally, after 1 minute from activating theelectric fan, the number of knock-downed insects of Culex pipienspallens was counted. And then, the knock-downed rate was calculated. Asa result, the 1 minute after knockdown percentage was 100%.

INDUSTRIAL APPLICABILITY

The carrier member and the support member according to the presentinvention are very useful for the non-heating-type insect-pest-controlapparatus, especially the fan-type apparatus.

1. A carrier member for holding a volatile component, comprising: afront surface layer made of fabrics, a back surface layer made offabrics, and connecting fibers connecting both layers; and wherein eachlayer has a knitted fabric structure which has openings arrangedregularly, and at least one part of at least one connecting fiber islocated so as to be seen inside each opening in a plane view.
 2. Acarrier member according to claim 1, in which the connecting fiberconnects a periphery part of the opening of the front surface layer anda periphery part of the opening of the back surface layer in eachopening, at least one part of at least one connecting fiber is locatedinside each virtual space, the virtual space is a space which issurrounded with both surface layers and virtual vertical walls, and thevirtual vertical walls are extended, from inner edges of the peripherypart of the opening of one layer, to the other layer.
 3. A carriermember according to claim 2, in which the connecting fiber comes acrossthe virtual space and connects the periphery part of the opening of thefront surface layer and the periphery part of the opening of the backsurface layer.
 4. A carrier member according to claim 3, in which theperiphery part of the opening consists of corner parts and line parts,the connecting fiber connects the corner part or line part of theopening of the front surface layer and the corner part or line part ofthe opening of the back surface layer, and the parts connected by theconnecting fiber are opposite across the virtual space.
 5. A carriermember according to claim 1, in which the opening of the front surfacelayer and the opening of the back surface layer are overlapped in a planview, and more than 70% of an area of the opening of one layer isoverlapped with the opening of the other layer.
 6. A carrier memberaccording to claim 1, in which one or more connecting fibers are curved.7. A carrier member according to claim 1, in which the periphery part ofeach opening is comprised of lines, the line consists of a bundle offibers, the line has a width of more than 0.6 mm, and the connectingfiber has a diameter of less than 0.2 mm.
 8. A carrier member accordingto claim 1, in which at least two connecting fibers are seen inside theopening.
 9. A carrier member according to claim 2, in which at least twoconnecting fibers are located inside the virtual space.
 10. A supportmember for volatilizing a volatile component, characterized in that thevolatile component is held by the carrier member of claim
 1. 11. Asupport member according to claim 10, in which the volatile component isan insect-pest-control component.
 12. A carrier member according toclaim 2, in which the opening of the front surface layer and the openingof the back surface layer are overlapped in a plan view, and more than70% of an area of the opening of one layer is overlapped with theopening of the other layer.
 13. A carrier member according to claim 2,in which one or more connecting fibers are curved.
 14. A carrier memberaccording to claim 2, in which the periphery part of each opening iscomprised of lines, the line consists of a bundle of fibers, the linehas a width of more than 0.6 mm, and the connecting fiber has a diameterof less than 0.2 mm.
 15. A support member for volatilizing a volatilecomponent, characterized in that the volatile component is held by thecarrier member of claim
 5. 16. A support member for volatilizing avolatile component, characterized in that the volatile component is heldby the carrier member of claim
 6. 17. A support member for volatilizinga volatile component, characterized in that the volatile component isheld by the carrier member of claim
 7. 18. A support member forvolatilizing a volatile component, characterized in that the volatilecomponent is held by the carrier member of claim 8.